I did a title specific search and found no other thread with "hypothesis" in the title, and none dealing exclusively with the issue of what hypothesis best explains the UFO phenomenon. So I propose that we explore it here.
To kick this off. We are all aware of the ETH ( Extraterrestrial Hypothesis ), but there are others who believe that the ETH isn't the best one. I persoanlly still believe it is the best explanation within the following context:
Extraterrestrial:
A term referring to a location or origin other than the planet Earth, but still within our current universe or spacetime.
ETH:
In ufology, the Extraterrestrial Hypothesis ( ETH ) theorizes that UFOs come from outer space and probably originate on another planet. However most UFOs are more accurately explained as shuttles that have been dispatched from a mother ship near the Earth or some secret terrestrial base. Therefore, technically, some UFOs may be terrestrial based, but because they are ultimately of alien origin, the ETH still applies to them.
I am particularly interested in point-counterpoint ( reasonably short ) exchanges that provide logical and cohesive reasoning for hypotheses that people believe provide a better explanation than the ETH. I look forward to your responses.
My 2 cent.
The UFO phenomenon does not act like ET from another planet.
They have been around for a long time. Their story changes depending on the culture they are interacting with. At times they claim to be Gods, Angels, Demons even pilots of dirigible aircraft at times. They tell people that they come from the Moon, then they tell others they come from Mars, then Orion's belt etc..... Their stated motivation also changes, first benevolent gods, then mine minerals was the story, then they where friendly explorers, then save humanity was the story for a while, then save the earth, it goes on and on.
Why abduct people - What kind of research takes at least 100+ years for a civilization that has mastered space and time? Further, what advanced civilization would need to conduct such sadistic experiments? Could they not stop by a medical waste dump or a hospital and get all the biological material they need? and why would it take a thousand years to learn whatever it is they want to learn anyway? If they are benevolent, would they steal people out of their homes in the night and subject them to terrifying experiments? Would you do that?
More interesting perhaps; does it take thousands of UFO's to conduct this research or whatever it is? there have been millions of sightings. Even considering that people are seeing the same crafts over and over again - there must be thousands, or at the very least several hundred of them conducting operations for thousands of years. Does that sound like a visitor from another planet? We send one probe to Mars and we know the atmosphere, the composition of the soil, and million other things - the ET's that crossed the galaxy need thousands of craft for thousands of years? really.
All the credible stories of UFO's being come upon by passersby (in ridiculous places to land mostly, like on the side of a highway), who discover ET's fixing a broke down space craft? not 1 or 2 but dozens of cases from the late 1800 to mid 1900; Add to that all the UFO crashes - apparently they crossed the galaxy in "space lemons".
Sometimes there is a material element to UFO abductions and sometimes there is none. One credible abduction leaves scorch marks on the ground where the UFO landed. But an equally credible abduction takes place from a high rise building where thousands should have seen the UFO, but no one sees it except the abductees. They appear and disappear, defy the laws of physics as we know it, yet sometimes they can still crash?
I'll spare you the rest, but you get my point.
ET - I don't think so. But that's their story (for now) and they are sticking to it.